WO1992007204A1 - Pumpenantrieb für ein automatgetriebe eines kraftfahrzeugs - Google Patents
Pumpenantrieb für ein automatgetriebe eines kraftfahrzeugs Download PDFInfo
- Publication number
- WO1992007204A1 WO1992007204A1 PCT/EP1991/001900 EP9101900W WO9207204A1 WO 1992007204 A1 WO1992007204 A1 WO 1992007204A1 EP 9101900 W EP9101900 W EP 9101900W WO 9207204 A1 WO9207204 A1 WO 9207204A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow shaft
- pump
- sealing ring
- ring
- radial
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/30—Details relating to venting, lubrication, cooling, circulation of the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/441—Free-space packings with floating ring
Definitions
- the invention relates to a pump drive for an automatic transmission of a motor vehicle, in which a converter shell formed jointly with a primary part of a torque converter is connected in a rotationally fixed manner to a hollow shaft, the other end of which is guided into the interior of a pump housing and drives a pump wheel, the hollow shaft via a roller bearing is mounted in a receiving bore of the pump housing, while in the receiving bore on the side of the roller bearing facing the converter shell, a radial sealing ring with at least one sealing lip contacting the hollow shaft and on the
- a sealing ring is arranged on the side facing the pump wheel and encloses a sealing gap with respect to the hollow shaft.
- a pump drive of the aforementioned type is known from the publication ATZ Automobiltechnische Zeitschrift 91 (1989) 9, page 445.
- the sealing ring designed as a plastic disk is pressed or glued into the receiving bore. Due to the manufacturing tolerances, this rigid fixation of the sealing ring to the pump housing can lead to the sealing ring having an uneven sealing gap with respect to the hollow shaft. In extreme cases there is the possibility that the sealing ring touches the hollow shaft in a certain area, which causes extreme wear. These problems are exacerbated by the fact that the sealing ring and the hollow shaft have a different coefficient of thermal expansion.
- This object is achieved on a pump drive of the aforementioned type according to the features of the characterizing part of claim 1 in that the sealing ring is guided in a floating manner in the receiving bore, the sealing ring providing radial play relative to the receiving bore and axial play relative to it through an outer ring of the Rolling bearing and a stop formed axial limit.
- Tolerances in the manufacture of the pump housing and the bearing of the hollow shaft can be compensated for by the radial mobility of the sealing ring as well as radial movements of the hollow shaft.
- the resulting sealing gap can be designed according to the amount of leakage oil that is to be supplied to the rolling bearing. Due to the pressure prevailing inside the hollow shaft and in the pump, the sealing ring is pressed against the outer ring of the rolling bearing, so that a favorable sealing effect is also achieved.
- Rolling bearing which has an annular shoulder, clamped to a stop surface of the receiving bore. That in Leak oil accumulating in the oil collection chamber is fed to the return bore or the return bore via the radial bores of the spacer ring.
- This guide disc serves as a pre-centering when assembling the pump drive and protects the rolling bearing and the sealing ring from damage during assembly.
- the sealing ring should be made of a material that has the same coefficient of thermal expansion as the hollow shaft.
- 1 denotes a torque converter, the converter shell 2 of which accommodates a primary part 3, which acts as a pump, in a rotationally fixed manner.
- Converter shell 2 a turbine wheel 4 and a stator 5 are also arranged.
- the converter shell 2 which is driven by a crankshaft (not shown in more detail) of an internal combustion engine, is connected in a rotationally fixed manner to a hollow shaft 6, the other end of which is guided into the interior of a pump housing 7 of a pump 8 designed as a sickle pump.
- This pump 8 is used Pressure medium supply of a control system, not shown, and for lubricant supply to an automatic transmission driven by the turbine wheel 4 of the torque converter 1 via an input shaft 9 running coaxially to the hollow shaft 6.
- the hollow shaft 6 receives a pump wheel 10 of the pump 8.
- the pump housing 7 is connected to an intermediate plate 11 of the automatic transmission and has a receiving bore 12 in which the hollow shaft 6 is mounted.
- a roller bearing 13, which should preferably be designed as a needle bearing, serves as storage.
- a sealing ring 14 is adjacent to the roller bearing 13, while a spacer ring 15, a snap ring 16, a guide disk 17 and finally a radial sealing ring 18 adjoin the roller bearing 13 in the direction of the converter shell 2.
- the roller bearing 13 has an outer ring 19 which is fixed with an annular shoulder 20 in the receiving bore 12 in the axial direction on a contact surface. Between this axially fixed outer ring 19 and a stop 22 of the receiving bore, the sealing ring 14 is arranged such that it has on the one hand relative to the outer ring 19 and the stop 22 axial play 23, and on the other hand between its outer circumference and the receiving bore 12 has radial play 24. It is also an even one
- Sealing gap between the sealing ring 14 and the hollow shaft 6 is provided.
- the radial sealing ring 18 prevents the lubricant, which accumulates almost without pressure in the oil collecting space 26, from reaching the outside.
- the torque converter 1 is mounted in the pump housing 7 by means of the hollow shaft 6, and the pressure medium in the interior of the hollow shaft 6 from the torque converter 1 and the pressure medium from the pump 8 are sealed.
- the sealing ring 14 can center on the circumference due to its radial play 24 in relation to the hollow shaft 6 such that a uniform sealing gap 25 is present overall.
- a predetermined amount of lubricant is supplied to the roller bearing 13 via this uniform sealing gap, while finally the radial sealing ring 18 ensures an absolute seal of the bearing towards the outside.
- a pressure prevails inside the hollow shaft 6 from the torque converter 1, which acts on the end face of the sealing ring 14 and presses it sealingly against the outer ring 19 of the roller bearing 13.
- the arrangement and design of the sealing ring according to the invention can thus ensure a very effective sealing of the bearing of the hollow shaft 6.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59105742T DE59105742D1 (de) | 1990-10-10 | 1991-10-04 | Pumpenantrieb für ein automatgetriebe eines kraftfahrzeugs. |
EP91917355A EP0551343B1 (de) | 1990-10-10 | 1991-10-04 | Pumpenantrieb für ein automatgetriebe eines kraftfahrzeugs |
KR1019930701061A KR0167316B1 (ko) | 1990-10-10 | 1991-10-04 | 자동차의 자동변속기를 위한 펌프구동장치 |
US08/030,457 US5352100A (en) | 1990-10-10 | 1991-10-04 | Pump drive for a motor vehicle automatic transmission |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4032081 | 1990-10-10 | ||
DEP4032081.2 | 1990-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992007204A1 true WO1992007204A1 (de) | 1992-04-30 |
Family
ID=6415971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/001900 WO1992007204A1 (de) | 1990-10-10 | 1991-10-04 | Pumpenantrieb für ein automatgetriebe eines kraftfahrzeugs |
Country Status (7)
Country | Link |
---|---|
US (1) | US5352100A (un) |
EP (1) | EP0551343B1 (un) |
JP (1) | JP3181586B2 (un) |
KR (1) | KR0167316B1 (un) |
DE (2) | DE59105742D1 (un) |
ES (1) | ES2075466T3 (un) |
WO (1) | WO1992007204A1 (un) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985852A3 (en) * | 1998-09-08 | 2000-11-29 | General Motors Corporation | Torque converter and seal arrangement |
WO2008015060A1 (de) * | 2006-07-29 | 2008-02-07 | Zf Friedrichshafen Ag | Pumpenantrieb eines automatgetriebes |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19522753C2 (de) * | 1995-06-26 | 1999-08-12 | Voith Turbo Kg | Anordnung einer hydrodynamischen Kupplung in einem Antriebssystem |
US5720167A (en) * | 1996-09-30 | 1998-02-24 | General Motors Corporation | Rotating pump seal |
JP2001506733A (ja) * | 1996-11-20 | 2001-05-22 | イナ・ヴェルツラーガー・シェッフラー・オッフェネ・ハンデルスゲゼルシャフト | ノイズを減衰する転動ベアリング |
DE19849327B4 (de) * | 1998-10-26 | 2009-05-07 | Zf Friedrichshafen Ag | Lageranordnung |
US7516612B2 (en) * | 2007-02-12 | 2009-04-14 | Gm Global Technology Operations, Inc. | Transmission pump seal |
DE102010001864A1 (de) * | 2010-02-12 | 2011-08-18 | ZF Friedrichshafen AG, 88046 | Getriebeanordnung |
DE102012222279B4 (de) * | 2012-04-27 | 2015-06-11 | Schaeffler Technologies AG & Co. KG | Lagerstelle für die Wandlerhals-Lagerung eines Drehmomentwandlers |
DE102014202366B4 (de) * | 2014-02-10 | 2017-01-12 | Voith Patent Gmbh | Hydrodynamische Maschine, insbesondere hydrodynamischer Retarder |
CN111022649A (zh) * | 2019-11-29 | 2020-04-17 | 西安航天精密机电研究所 | 一种微型密封组件及其构成的气体传输装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2185062A5 (un) * | 1972-05-15 | 1973-12-28 | Srm Hydromekanik Ab | |
GB2076907A (en) * | 1980-05-31 | 1981-12-09 | Schubert & Salzer Maschinen | Shaft seals |
GB2110345A (en) * | 1981-11-24 | 1983-06-15 | British Leyland Cars Ltd | Hydrodynamic transmissions |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1168274A (fr) * | 1955-12-28 | 1958-12-05 | Gen Motors Corp | Frein hydrodynamique perfectionné et mécanisme de transmission comportant ledit frein |
US3210940A (en) * | 1963-03-11 | 1965-10-12 | Fmc Corp | Variable speed coupling |
GB1008497A (en) * | 1963-10-02 | 1965-10-27 | Self Changing Gears Ltd | Improvements in or relating to hydro-kinetic transmissions |
US3554661A (en) * | 1968-12-20 | 1971-01-12 | Decatur Pump Co | High temperature pump |
DE3639304C1 (de) * | 1986-11-17 | 1988-05-26 | Ford Werke Ag | Dichtringanordnung zum Abdichten eines Druckmittelkanales zwischen sich relativ zueinander drehenden Maschinenbauteilen |
JP2574940B2 (ja) * | 1990-10-20 | 1997-01-22 | 株式会社クボタ | トルクコンバーター駆動型油圧ポンプ装置 |
-
1991
- 1991-10-04 ES ES91917355T patent/ES2075466T3/es not_active Expired - Lifetime
- 1991-10-04 EP EP91917355A patent/EP0551343B1/de not_active Expired - Lifetime
- 1991-10-04 US US08/030,457 patent/US5352100A/en not_active Expired - Fee Related
- 1991-10-04 KR KR1019930701061A patent/KR0167316B1/ko not_active IP Right Cessation
- 1991-10-04 JP JP51575891A patent/JP3181586B2/ja not_active Expired - Fee Related
- 1991-10-04 WO PCT/EP1991/001900 patent/WO1992007204A1/de active IP Right Grant
- 1991-10-04 DE DE59105742T patent/DE59105742D1/de not_active Expired - Fee Related
- 1991-10-04 DE DE4133187A patent/DE4133187A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2185062A5 (un) * | 1972-05-15 | 1973-12-28 | Srm Hydromekanik Ab | |
GB2076907A (en) * | 1980-05-31 | 1981-12-09 | Schubert & Salzer Maschinen | Shaft seals |
GB2110345A (en) * | 1981-11-24 | 1983-06-15 | British Leyland Cars Ltd | Hydrodynamic transmissions |
Non-Patent Citations (1)
Title |
---|
ATZ AUTOMOBILTECHNISCHE ZEITSCHRIFT 91 Nr. 9, 1989, Seiten 445 - 453; H.SCHÖPF: 'MERCEDES-BENZ FÜNFGANGN-AUTOMATIKGETRIEBE' in der Anmeldung erwähnt * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985852A3 (en) * | 1998-09-08 | 2000-11-29 | General Motors Corporation | Torque converter and seal arrangement |
WO2008015060A1 (de) * | 2006-07-29 | 2008-02-07 | Zf Friedrichshafen Ag | Pumpenantrieb eines automatgetriebes |
US8096115B2 (en) | 2006-07-29 | 2012-01-17 | Zf Friedrichshafen Ag | Pump drive of an automatic transmission |
KR101321275B1 (ko) | 2006-07-29 | 2013-10-25 | 젯트에프 프리드리히스하펜 아게 | 자동 변속기의 펌프 구동 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP3181586B2 (ja) | 2001-07-03 |
EP0551343B1 (de) | 1995-06-14 |
JPH06501299A (ja) | 1994-02-10 |
DE4133187A1 (de) | 1992-04-16 |
US5352100A (en) | 1994-10-04 |
DE59105742D1 (de) | 1995-07-20 |
EP0551343A1 (de) | 1993-07-21 |
KR930702635A (ko) | 1993-09-09 |
ES2075466T3 (es) | 1995-10-01 |
KR0167316B1 (ko) | 1998-12-15 |
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